perrow



J. S. PERROW.

FURNACE.

APPLICATION FILED JULY 16, 1919.

I PatentedSept. 13, 1921.

2 SHEETS-SHEET l.

moemtoz attozmmao J. S. PERROW.

FURNACE.

APPLICATION FILED JULY 16, I919.

PatentedSept. 13,1921

2 "LETS-SHEET '2- 35 {0 a'mmwtoi UNITED- STTE Parent OFFICE;

JAMES s. rnanow, or ALTAVISTA, VIRGINIA, assrenon or ONE-THIRD To me e.

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, Patented. Sept. 13, 1921.

Application filed July 16, 1919. L Serial No. 311,330.

To all whom it may concern:

Be it known that 1, JAMES S. Pnnnow, a

citizen of the United States, residing-at novel means for controllingthe draft door,

to improve the construetlon ofthe casing,

and, particularly, to provide a novel crown 1n the casing; and,generally, to improve and to enhance the utility of devices of that typeto which theinvention appertains.

With the above and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination' andarrangement of parts and in the details of construction hereinafterdescribed and elaimed,'.it being understoodthat, with in the scope ofwhat is claimed, changes in the precise embodiment of the inventionshown can be made' without departing from the spirit of the invention.

In the accompanying drawings v Figure 1 shows in perspective, a deviceconstructed in accordance with the invention, the casing having beenremoved; Fig. 2 is a transverse section of the complete furnace lookingtoward the front; Fig. 3 is a perspective view showing-one of the crownsections; Fig." 1' is a longitudinal section of the complete furnace;Fig. 5 is a perspective showing one of the grates; Fig. 6 is a sectionaldetail showing one of the anchoring bolts for the front plate of thefurnace; and Fig. 7 is a fragmental vertical section similar to Fig. 4but illustrating a modification.

In carrying out the invention, there is provided a front plate 1 havinga curved top 2. The numeral 3 marks the stoke door carried on the frontplate 1 by hinges 1 and adapted to swing open, horizontally. The door 3is supplied with a latch 5 adapted to The front plate 1 cooperate with akeeper'6 on the front plate 1, the dooroarr-ying a handle'f.

Located below the stoke door 3 is a combined draft and ash door 8,mounted to swing verticallyon hinges 9 assembled with thefront plate 1.The numeral 10 denotes a curved prop provided with teeth 11v on itslower edge. The prop 10 extends outwardly through an opening 12 in thedoor '8. The

door 8 is supplied with outstanding ears 14 carrying a pivot pin 15 onwhich the prop 10 is mounted to swing vertically. I The prop -10-isprovided at its outer end with a grip 16.

The grip 16 serves as a means for manipu- Ij latin the prop 10, and Iserves; also, as a handle wherebythe door 8 may be swung vertically onits hinges 9. W hen the door 8" has been opened to any desired extent,

either for the purpose of creating andraft, .1

or for the removal of ashes, the'teeth ll on the prop 10 may be engagedwith the front plate. 1 at the lower edge of the opening 17 for whichthe door 8 constitutes a closure.

ings 18.

The: numeral 19 denotes a; rectangular frame-provided at its endswithinwardly projecting flanges '20. Theside portions of is provided withopenthe tram-e19 are connected at'an intermedi- 5:?

ate point by a cross bar 21 including a'horizontal body 22 and-anupstanding flange.23. The rear end of the frame 19 is supplied with anoutwardly projectinglip 25. Securing elements 24, which may be bolts,unite 4;

the'forward end of the frame 19 withthe front plate 1. The frame 19 maybe supported at its rear end and at its sides,'0n posts 26, formedindependently of the frame.

The posts 26 may be omitted if desired. "The numeral 27 designates athimble carried by a plate 28 having a rim 29, the'rimbeing connectedbysecuring devices 30 to thelip 25 of the frame 19. The thimble27 entersversely of the furnace:

cannot slide rearward. 'SGCtlOIlOf the crown rests on thecurved top 2The invention comprises a casing, includ ing sides 35 and a rear endwall 36, the sides and the rear end wall preferably being made ofbricks. The upper edge of the rear end wall 36 is curved to correspondto the curved top 2 of the front plate 1. The li 25 on the frame 19 issupported in the rear end wall 36, and, thus, the frame 19 is upheld atits rear end, the forward end of the frame being connected, asaforesaid, by means of the securing elements 24, to the front plate 1.The rim 29 of the plate 28 which carries the thimble 27 is embedded inthe brick work of the rear end wall 36. The posts 26 rest against thesides 35 and against the end wall 36 of the brick work portion of thecasing.

The casing portion of the furnace includes a crown, made up ofaplurality of arched sections 37 disposed end to end, each section beingprovided at one end with an offset flange 38' receiving the end of anadjoining section. The flange of the rearmost section of the curved topoverlaps rear end wall 36, as shown at 39, the end of said sectionabuttingagainst the rear end wall as shown at 40 so that the crown,considered as an entity, The foremost arched port the arched sections 37of the crown, but, also, serve as protectors or guards for the upperedges of the brick work sides 35. The

side members 42'cooperate with the sections 37 to define shoulders 43,which, coacting with theinner. surfacesof the sides 35, prevent. thesections 37 from moving trans- In the openings 18, of the front plate 1,tie'bolts 44 are located, the heads 45 of the tie bolts engagingthe'front plate 1, the tie bolts extending rearwardly into the brickwork which forms the sides 35. Washers 46 are mounted on the tie bolts44 and bear against the brick work, nuts 47 being threaded on the endsofthe-bolts to cooperate with the washers 46. The tie bolts 44 .areembedded in the brick wor'kof the sides-35as the sides .arebeingbuiltQup and form a secure anchor- V ,a geforholding the front plate 1'in place.

In Fig. 7 of the drawings, parts hereinbefore described-havebeendesignated by numerals previously used, with the suffix a. In Fig. 7,the thimble 27 is a simple tube, the plate 28 and the rim 29 of Fig 1being omitted, the thimble being merely embedded in the brick work ofthe rearend wall 36 Having thus described the invention, what is claimedis 1. A furnace comprising a front wall; a casing including a rear endwall and side walls; a rectangular frame including end members, one endmember having an outstanding lip mounted in the rear end wall, the endmembers being provided with inwardly extended flanges, the side portionsof the frame being connected by a cross bar in cluding avhorizontal bodyand an upstanding flange; grate sections within the frame, the outerends thereof being supported on the flanges of the end members, theinner ends thereof being supported by the body-of-the cross bar andbeing separated by the flange of the cross bar; means for securing theother end member of the frame to the front wall; and a crown comprisingarched sections extended between thevfront wall and the rear end wall,the intermediate crown sections having transverse flanges recelvmg thead acent end of an ad o1n1ng section, the

.crown sections being provided with laterally walls; a crown extendedbetweenthe front wall and the rear end walland supported on the sidewalls; a grate-carrying frame seicured .at its forward end to the frontwall and provided at itsrear end with an out- 7 standing lip mounted inthe rear end wall; a

plate provided with a thimble, and'including a circumferential rim, therim being mounted in the rear end wall and being supported on the lip;and means for securing the rim to the lip.

In testimony that I claim the foregoing as my own, ;I have heretoa-flixed my signature in the presence of two witnesses.

JAMES S.*PERROW.

Witnesses:

MASON B. LAWTON, IVY E. SIMPSON.

